桥墩组中轴线与水流方向夹角过大对河流流场影响的数值模拟研究  

Numerical Simulation Research on the Effect By the Bigger Angle between the Middle-line of the Piers Group and the River Flow

作　　者：吴飞[1] 甘盟[1] 

机构地区：[1]广东省水利电力勘测设计研究院,广东广州510635

出　　处：《华北水利水电学院学报》2009年第1期11-14,共4页North China Institute of Water Conservancy and Hydroelectric Power

摘　　要：为研究桥墩组中轴线与水流方向夹角过大对河流流场的影响,采用平面二维数学模型首先模拟不同夹角下桥墩组对理想矩形水槽水流流场的影响,然后计算工程实例.结果表明桥墩组中轴线与水流方向夹角越大,桥墩对水流流场影响越大.最后得出结论:将左右幅桥墩错开布置可较好地减少因桥墩组中轴线与水流方向夹角过大而引起的对河流流场不利的影响.To study the effect by the piers group with the bigger angle between the flow and the middle-line of the piers group,using the plane 2-D mathematical model to simulate the effect on the ideal rectangular flume in the different angles between the river flow and the middle-line of the piers group,then simulate the practical project,and the results indicate that piers group makes greater effect by the bigger angle.Latter,the conclusions are got that the left pier and the righ pier are stagger to be built to re...

关 键 词：桥墩 角度 水流 数值模拟 

分 类 号：U442.3[建筑科学—桥梁与隧道工程]